73993143 has 8 divisors (see below), whose sum is σ = 112751488. Its totient is φ = 42281784.

The previous prime is 73993133. The next prime is 73993159. The reversal of 73993143 is 34139937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73993143 - 2²⁶ = 6884279 is a prime.

It is a super-2 number, since 2×73993143² = 10949970422036898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73993133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761721 + ... + 1761762.

It is an arithmetic number, because the mean of its divisors is an integer number (14093936).

Almost surely, 2^73993143 is an apocalyptic number.

73993143 is a deficient number, since it is larger than the sum of its proper divisors (38758345).

73993143 is a wasteful number, since it uses less digits than its factorization.

73993143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523493.

The product of its digits is 61236, while the sum is 39.

The square root of 73993143 is about 8601.9267027800. The cubic root of 73993143 is about 419.8206774158.

The spelling of 73993143 in words is "seventy-three million, nine hundred ninety-three thousand, one hundred forty-three".